PCB Christmas Trees!

Forum user bitfogav has made a well themed project in the form of circuit board Christmas trees. Each tree contains 16 LED’s, driven by a couple of 74595 (serial in – parallel out) shift registers. An Arduino or practically any microcontroller can then be used to send in a bunch of 1’s and 0’s to make the Christmas tree lights flash.

Here’s a photo showing the rear of the PCB:

Here’s a youtube video with many PCB Christmas trees which seem to be driven by the one Arduino.

You can download the PCB design file here (you will need DIPTRACE to open this)XmasTreeV1